Hi,
I actually created mine from an external midifle based on the c chord. I loaded the midifile into the sequencer. Used the sequencer to pad function track 1 & 2. I only did it on pads 1 to 4. Pads 5 & 6 have a chord progression track and track1 ( not 1 & 2).

If you need more in depth details let me know, and I can tell you exactly how I did it.

best wishes
rikki